111043430131 has 4 divisors (see below), whose sum is σ = 113406056352. Its totient is φ = 108680803912.

The previous prime is 111043430107. The next prime is 111043430137. The reversal of 111043430131 is 131034340111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131034340111 = 340819 ⋅384469.

It is a cyclic number.

It is not a de Polignac number, because 111043430131 - 2¹⁵ = 111043397363 is a prime.

It is a super-2 number, since 2×111043430131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111043430137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181313040 + ... + 1181313133.

It is an arithmetic number, because the mean of its divisors is an integer number (28351514088).

Almost surely, 2^111043430131 is an apocalyptic number.

111043430131 is a deficient number, since it is larger than the sum of its proper divisors (2362626221).

111043430131 is an equidigital number, since it uses as much as digits as its factorization.

111043430131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362626220.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 111043430131 its reverse (131034340111), we get a palindrome (242077770242).

The spelling of 111043430131 in words is "one hundred eleven billion, forty-three million, four hundred thirty thousand, one hundred thirty-one".